TW574491B - Heat pump hot water supply device - Google Patents

Description

574491 ,,,,,,,,, Γ ,,,,,,,,, ... ,,,,,,,,,,,,,,,,, J ,,,,,,,,,,,,,,,,,,,,,,,,,, ,,,,,,,,::,,,,,,,,, F,,,,,, ',,,,::: 7, 7,: ,, [Technical Field to which the Invention belongs 3 Technical Field The present invention relates to Related to an instantaneous boiling water type heat pump hot water supply device 05 [^ SL] Background Art So far, a hot water supply device using combustion gas or petroleum has been used as an instantaneous boiling water type hot water supply device. Such instantaneous boiling water type hot water supply devices The device has the characteristics of rapid temperature rise and exhibits powerful capabilities. Conversely, there are also unavoidable problems such as air pollution caused by exhaust gas, insecurity to direct combustion, and combustion noise. In contrast, The heat pump type hot water supplier that stores hot water in a large hot water storage tank and supplies hot water solves the problem of hot water supply machines that operate by combustion, and has better thermal efficiency due to the heat pump. However, the aforementioned hot water supply The device has a large and heavy water storage tank. There are construction problems such as the installation of 15 spaces. Although there is an idea to achieve instant boiling water by using a heat pump to solve the problem of large hot water storage tanks, the situation of a heat pump is different from a combustion hot water supply machine. It takes time to increase the heat. Therefore, it takes time for hot water to flow out and makes users dissatisfied. In addition, the heat pump changes the heat supply capacity according to natural conditions such as air temperature or humidity or water temperature. It is difficult to cover a wide range of hot water supply capacity and maintain a fast and stable hot water supply temperature under conditions of changing hot water supply flow rates. In this way, the hot chestnut-type hot water supply device can stably supply hot water. There is a problem in the above-mentioned Japanese Patent Laid-Open Publication No. 2-223767.

发明 Description of the invention The instantaneous boiling water heat pump type hot water supply device to solve the above problems is shown in Fig. 11 in outline. The heat pump hot water supply device includes a heat pump circulation mechanism 207 that connects a compressor 202, a radiator 203, a pressure reducing unit 204, and a heat sink 205 to a closed circuit through a refrigerant flow path 201. The heat pump type hot water supply device 5 further includes a heat exchanger 210 having a water flow path 209 for heat exchange with the refrigerant flow path 208 of the radiator 203, and a water supply for supplying tap water to the water flow path 209. A pipe 211 and a hot water supply circuit 213 for connecting the water flow path 209 to a hot water supply terminal 212 such as a shower head or a faucet. Furthermore, a temperature sensor 214 is provided in the hot water supply circuit 213 to detect the hot water supply temperature, and a converter 215 is provided to control the number of revolutions of the compressor 202. In addition, the frequency output to the compressor 202 is converted in accordance with the difference between the detected temperature and the set temperature of the temperature sensor 214. That is, in the conventional hot water supply device, it is controlled to increase the number of revolutions of the compressor 202 when the hot water supply temperature is lower than the set temperature, and to decrease the number of revolutions when the hot water supply temperature is higher. The load of hot water supply during the above-mentioned instantaneous boiling-type hot water supply is not constant, especially since the flow rate of the user varies greatly depending on the purpose of hot water supply, so the load of hot water supply will change significantly. For example, in the case of domestic hot water supply, when the hot water is supplied until the shower or bath is filled with hot water, the flow rate is 20 10L / min to 20L / min, and when the kitchen is washing dishes or washing the face, hot water is supplied. Small flow rate from 3L / min to 5L / min. In addition, the hot water supply load also changes greatly due to the change in the temperature of the feed water due to the different seasons. In this way, due to changes in the flow rate or water temperature, the hot water supply load will greatly increase 574491.

change. In contrast, the conventional heat pump type hot water supply device only uses the difference between the hot water supply temperature and the set temperature to change the number of revolutions of the compressor, and the control reaction and stability of the hot water supply heat are not ideal. Situation. For example, if the temperature difference between the hot water supply temperature and the set temperature and the number of revolutions of the compressor are reduced, that is, the gain is controlled to make the control stable, the amount of change in the number of revolutions relative to the temperature difference will be changed. cut back. Therefore, the hot water supply temperature changes slowly, and it takes time to reach the set temperature, and there is a different flow or water temperature due to the deviation, so the stable value of the hot water supply temperature will not reach the set temperature and will change. If the control gain is increased, it is possible to perform stable control in a large flow with a large supply load of hot water, since the change in the hot water supply temperature is less than the change in the number of revolutions of the compressor. However, in the hot water supply with a small flow rate, the change in the temperature of the hot water supply relative to the change in the number of revolutions of the compressor becomes sharp. Therefore, not only the change in the speed control of the compressor becomes drastic and the hot water supply temperature is unstable, but also the chase phenomenon caused by the phase deviation may disperse the control of the change in the hot water supply temperature and speed. In addition, the instant boiling water heat pump type hot water supply device requires time to increase the pressure or temperature of the entire heat pump circulation mechanism when hot water supply is started. Therefore, hot water supply from the water flow path of the heat exchanger is slower than that of a gas hot water supply machine. In the conventional structure, when the hot water supply is started, only the difference between the hot water supply temperature and the set temperature is used to set the number of revolutions of the compressor. Therefore, regardless of the large or small flow rate, when the hot water supply temperature is low at the beginning of hot water supply, the compressor's revolutions will be set to the same high standard. As a result, the hot water supply temperature from the heat exchanger will rise sharply and overshoot at low flow rates. As a result, hot water with a higher temperature than the set temperature flows out, and due to the exotherm 574491 ί,,,, = S '-SS, V \', * · ,,,, ',, f 玖,' Invention. _Crypto fiber __ 议 __Key Fibers _ Li Yiqin Zhong ^ The rise in the temperature of the compressor makes the pressure at the outlet of the compressor abnormally large, and other undesirable situations occur. Furthermore, in the conventional heat pump hot water supply device, although it is necessary to change the operating state of a single compressor 202 and the number of revolutions, the capacity change range is controlled by only changing the number of revolutions of a single compressor. limited. For example, it cannot cover a wide range of hot water supply capabilities, ranging from the powerful ability of filling hot water at the same time in the winter to showers and baths to the small capacity of washing dishes in the summer. As a result, the temperature of the shower will drop, and hot water may not flow out when washing dishes. 10 Also, if the operating conditions of the heat pump circulation mechanism are changed due to air temperature, water temperature, or hot water supply load, the operating efficiency will also change. . In the conventional heat pump type hot water supply device, the rotation speed of the compressor is changed according to only the hot water supply temperature, so the operation efficiency changes, and the operation can be continued even under the condition of poor heating efficiency. Therefore, due to different conditions, not only the efficiency will be extremely deteriorated and the capacity will not be exerted, but the operating cost will also be increased. On the other hand, in order to shorten the time required for the temperature of the outgoing hot water to rise when hot water starts to be supplied, there is also a method of setting a hot water storage tank for heat exchange with the radiator and surrounding the compressor with the hot water storage tank. In this structure, since the hot water is stored in the hot water storage tank once it is supplied, and the compressor does not cool even if the hot water supply is stopped at 20, the hot water supply can be made quickly when the hot water is supplied again The temperature rises. However, once the hot water storage tank becomes cold, the compressor also becomes cold, and the temperature of the heat pump circulation mechanism becomes slower because the heat of the compressor is taken away by the hot water storage tank. In addition, since hot water supply is performed from a hot water storage tank, 574491

οοΒίχαο Description

Therefore, once the temperature of the hot water storage tank becomes cold, the temperature of the outflow hot water also becomes cold, and the temperature of the outflow hot water does not increase until the temperature of the hot water in the hot water storage tank rises. Therefore, it takes more time for the hot water supply from the state in which the hot water storage tank is cooled until the hot water flows out. 5 As mentioned above, in the conventional heat pump hot water supply device,

The hot water supply load is controlled regardless of the size of the hot water supply load, so it is not easy to cope with a wide range of hot water supply loads. In addition, it is difficult to coexist the reactivity and stability of hot water temperature control. In addition, it sometimes worsens the increase in hot water supply temperature and reduces efficiency and other problems. 10 [Summary of the Invention] Disclosure of the Invention

The hot water supply device of the present invention includes a heat pump circulation mechanism including a compressor, a radiator, a decompression unit, a heat sink, and a closed circuit configured by the compressor, the heat sink, the decompression unit, and the heat sink. 15 refrigerant flow paths; a heat exchanger having a water flow path for heat exchange with the refrigerant flow path; a water supply pipe for supplying tap water to the water flow path; and a hot water supply circuit connected to be connected from the foregoing Water flows to the end of the hot water supply. The hot water supply device further includes: 1) a load setting section for setting the heating amount of the heat exchanger and a heating control section for controlling the heating amount according to the set value; 2) a heating device containing the foregoing heat exchanger The water heating part of the water path before and after the water flow path; 3) most compressors; and 4) most heat pump circulation mechanisms 10 574491 ，, description of the invention, ···· ×, \ ,,: V, '' V, ,: ≫,, ί ::. Person S…:, :: ', ΛΛ:' ,,,,,,,: ,,, :::, ..., ', :: ... Ά,:,',-ΐ '. Brief Description of Drawings Fig. 1 is a block diagram of a heat pump type hot water supply device according to a first embodiment of the present invention. 5 FIG. 2 is a configuration diagram of a heat pump type hot water supply device according to a second embodiment of the present invention. Fig. 3 is a configuration diagram of a heat pump type hot water supply device according to a third embodiment of the present invention. Fig. 4 is a configuration diagram of a heat pump hot water supply device 10 according to a fourth embodiment of the present invention. Fig. 5 is a configuration diagram of a heat pump type hot water supply device according to a fifth embodiment of the present invention. Fig. 6 is a configuration diagram of a heat pump type hot water supply device according to a sixth embodiment of the present invention. 15 FIG. 7 is a configuration diagram of a heat pump type hot water supply device according to a seventh embodiment of the present invention. Fig. 8 is a configuration diagram of a heat pump type hot water supply device according to an eighth embodiment of the present invention. Fig. 9 is a configuration diagram of a heat pump hot water supply device 20 according to a ninth embodiment of the present invention. Fig. 10 is a configuration diagram of a heat pump type hot water supply device according to a tenth embodiment of the present invention. Fig. 11 is a block diagram of a conventional heat pump hot water supply device. 11 574491 Deyao Ji number floating surface S fiber recording fiber selection, burning and burning condensed edge fiber booth inspection surface :: piece: $ 释: s evil: 工 / r 口 口 ^^ 口 口 口Secret fiber age record fiber fiber ore iron _ should fiber ore ^ § «^ fiber 5; complaint surface fiber fiber fiber iron ore suspected fiber fiber ore record _ record fiber Wei Ning Tang ore fiber forming the best form of the invention The following is the embodiment of the present invention , While referring to the illustration. In addition, in each embodiment, parts having the same structure and the same operation are given the same symbols, and detailed descriptions are omitted. 5 (first embodiment)

Fig. 1 is a configuration diagram of a heat pump type hot water supply device according to a first embodiment of the present invention. In Fig. 1, in the heat pump circulation mechanism 7, the compressor 2, the first radiator 3A, the second radiator 3, the pressure reducing unit 4, and the heat absorber 5 are connected in a closed circuit through a refrigerant flow path 1. The heat pump cycle mechanism 7 is a supercritical heat pump cycle mechanism using, for example, carbon dioxide as the refrigerant, and the pressure of the high-pressure side refrigerant is above the critical pressure of the refrigerant. The compressor 2 is driven by a built-in electric motor (not shown), and the sucked refrigerant is compressed to a critical pressure and discharged. The heat exchanger 10 has a water flow path 9 for exchanging heat with the refrigerant flow path 8 of the second radiator 3. The water supply pipe 11 for directly supplying the tap water 15 to the water flow path 9 is a hot water supply that allows hot water flowing from the water flow path 9 to pass through to the hot water supply end 12 composed of a shower head 16 or a water tap 17 The circuits 13 are connected. The heating section 38 for heating the water in the hot water supply circuit 13 is constituted by a heat storage section 40 connected in parallel to the hot water supply circuit upstream section 39. The heat storage section 40 is composed of a storage tank 41 for storing the flowing water of the water supply circuit 13 and a mixing valve 34 for mixing the flowing water of the upstream section 39 and the heat storage section 40. The storage tank 41 is configured such that the lower end is an inlet pipe 43 and the upper end is an outlet pipe 44, and a first radiator 3A is built in the lower part and covered with a heat insulating material 45. The first heat radiator 3A series also has a temperature for storing heat in the storage tank 41 (hereinafter, referred to as storage temperature) 12 574491

发明 、 Explanation of the invention Yi Yi Leak § Fiber § Yi Fiber Fibrillation Jun: »» Fiber Inspection Keep the heat preservation part at a predetermined temperature. The hot water supply circuit 13 is branched from the branching portion 46 into an upstream portion 39 and an inlet pipe 43, and merges from the upstream portion 39 and the outlet pipe 44 at the joining portion 47. A mixing valve 34 is provided at the confluence part 47. In the heat exchanger 10, the flow direction of the refrigerant flow path 8 and the flow direction of the water flow path 9 should be opposite to each other, and the two flow paths should be closely combined to make the heat transfer between them easier. With this structure, the heat transfer between the refrigerant flow path 8 and the water flow path 9 is uniform, and the heat exchange efficiency is better. In addition, high-temperature hot water flows out.

The size of the storage tank 41 is determined based on the amount of stored heat equivalent to the amount of heat 10 that is insufficient due to the delay in the thermal reaction when the hot pump circulation mechanism 7 or the heat exchanger 10 supplies hot water. For example, when the feed water temperature is 5 ° c and the target temperature is 45 ° c, and hot water is supplied at 1 OL / min, if the delay of three minutes before the hot water is discharged from the target temperature, the insufficient heat is (45 ° C-5 ° C) x10L / minx3min / 860 and 1.4kWh. When it is replenished with the storage tank 41 at 80 ° C, it has a capacity of 1.4kWhx860 / (80 ° C-5 ° C) = 16L. 15 A water supply pipe 11 is provided to detect the flow of the hot water supply circuit 13

A flow rate detecting section 20 and a water temperature detecting section 21 for detecting a feed water temperature toward the heat exchanger 10. The hot water supply circuit 13 is provided with a hot water temperature detecting unit 22 for detecting the temperature of the outflowing hot water. Further, a storage temperature detecting section 51 for detecting the temperature of the hot water in the storage tank 41 is provided on the upper part of the storage tank 41. The user sets the temperature arbitrarily by the temperature setting unit 23 for setting the target temperature of the hot water supply. The control unit 54-once the flow rate is detected by the flow rate detection unit 20, the deviation of the outflowing hot water temperature from the hot water temperature detection unit 22 and the temperature setting unit 23 and the target temperature is output from the feedback control amount. And 'from water temperature inspection 13 574491 r-./c ^: ;; Λ ;; ii;' a, :: ^ i; r; ^ l;:; measuring section 21 and temperature setting section 23 and flow detection section 20 Each value calculates the hot water supply load. The feedback control amount is added to the hot water supply load, and the number of revolutions of the compressor 2 is controlled based on the added value. The control unit 54 corrects the number of revolutions of the compressor 2 based on the detection value of the air temperature detecting unit 28 5 for detecting the air temperature. In addition, the pressure reducing unit 4 and the fan 32 are controlled separately, and the heat pump cycle mechanism is operated at the highest efficiency. The amount of heating in the heat exchanger 10 changes in proportion to changing the number of revolutions of the compressor 2 in accordance with the temperature. Here, the control unit 54 previously memorizes the relationship between the heating amount of the heat exchanger 10 and the number of revolutions of the compressor 2 for each temperature. Then, the number of revolutions is controlled according to the air temperature setting 10 so that the required heating amount is consistent with the heating amount of the heat exchanger 10. This makes it possible to control hot water supply with high accuracy even if the temperature changes. Further, the control unit 54 drives the mixing valve 34, controls the mixing ratio of the flowing water from the hot water supply circuit upstream portion 39 and the flowing water from the storage tank 41, and brings the temperature of the outgoing hot water close to the target temperature. 15. When the control unit 54 stops supplying hot water, the storage temperature detection unit 51 detects the storage temperature, and controls the compressor 2 at a low speed to maintain the storage temperature at a predetermined temperature (for example, 80 ° C) and keep it warm. Running. By making the predetermined temperature of the insulation much higher than the target temperature of hot water supply (for example, 45 ° C), the heat storage density can be increased. Thereby, the size of the storage tank 25 can be miniaturized in the above structure, and its operation and effect will be described. In FIG. 1, when the faucet 17 is turned on, tap water will flow from the water supply pipe 11. The flow detection unit 20 detects this and sends a signal to the control unit 54, and the compressor 2 starts to operate. At this time, when the heat pump circulation mechanism 7 is completely cooled 14 20 574491

In the state, even if the compressor 2 is operated, the pressure and temperature of the entire circulation mechanism will not reach a normal state, and therefore water close to the feed water temperature will flow out from the water flow path 9. The control unit 54 sets the mixing ratio of the mixing valve 34 to, for example, 1: 1 at a predetermined time (for example, three minutes) after the hot water supply is started. Here, if the temperature of the water supply 5 is 5 ° C, the storage temperature is 80 ° C, and the outlet temperature from the water flow path 9 is still 5 ° C, then the outlet temperature of the mixing valve 34 is (80 ° C + 5 ° C) / 2, the temperature of the outgoing hot water at 42.5 ° C. Thereafter, the outlet temperature of the water flow path 9 will gradually rise. However, since the storage temperature in the storage tank 41 flows into the cold water close to the feed water temperature from the inlet pipe 43, the outlet temperature of the storage tank 41 will gradually decrease. In this way, the outlet temperature of the mixing valve 34 is maintained at a temperature close to the target temperature (for example, 45 ° C) of the hot water supply mixed with various flowing water. As described above, the mixing valve 34 is controlled to supplement the hot water supply delay from the heat exchanger 10 by using hot water from the storage tank 41 immediately after the hot water supply is started. Further, when the supply of hot water is started, if the temperature of the heat exchanger 10 15 does not become cold, a value higher than the target temperature is output from the hot water temperature detection unit 22. At this time, the mixing ratio is adjusted to be large on the upstream portion 39 side, and the temperature of the outflow hot water is brought close to the target. Then, once the temperature of the heat pump circulation mechanism 7 is stabilized, the mixing ratio of the mixer 34 is switched to the main body of the upstream portion 39. At this time, the high-temperature and high-pressure refrigerant gas system discharged from the compressor 2 20 flows into the first radiator 3A and the second radiator 3, heats the water in the storage tank 41, and heats the water flowing in the water flow path 9. Then, the heated water flows out from the hot water supply end 12 through the upstream portion 39 and the hot water supply circuit 13. On the other hand, the refrigerant cooled in the first heat radiator 3A and the second heat radiator 3 is decompressed and co-current by the decompression section 4 574491. The invention is described as Γ: £: 4 into the heat absorber 5, where it absorbs atmospheric heat. The heat energy of natural energy such as solar energy evaporates and gasifies, and returns to the compressor 2. The control unit 54 in the supply of hot water uses a well-known ratio

The one-derivative (PID) control calculates the feedback control amount from the deviation of the outflow hot water temperature from the target temperature. The proportional gain, integral coefficient, or differential coefficient of the control constant must be set in advance to the most appropriate value that allows the reactivity and stability of the control to coexist. In addition, the feedback control may be proportional integral (PI) control or proportional (P) control or lack of or neural-like control. Then, on the other hand, the difference between the target temperature and the feed water temperature is multiplied by the flow rate 10 detected by the flow rate detection unit 20 to calculate the hot water supply load. This is the so-called feedforward control amount. Then, the feedback control amount and the feedforward control amount are added, and the added value is used to perform the revolution control of the compressor 2. By adding this feedback control, the outlet hot water temperature can be accurately controlled to the target temperature. In particular, by using integral elements such as PID control or PI control, the temperature of the outflow hot water is brought closer to the target temperature. Furthermore, by using the proportional control element, when the temperature of the hot water flowing out immediately after the hot water supply starts is low, the reactivity is good due to the powerful heating control. On the other hand, since the feedforward control is the amount of heat required when the temperature of the hot water supply is stable, there are rarely excessive or insufficient amounts of heat and the stability of the control is good. In addition, when the hot water supply flow or feed water temperature changes sharply, since 20 directly reacts and changes the control heating amount, the reactivity at this point is better than feedback control and the stability is good. Then, since the feedback control and the feedforward control are added together for control, the respective characteristics can be utilized, and control with good reactivity and stability can be achieved. Next, the operation when the hot water supply is stopped will be described. Although stored 16 574491

The tank 41 is covered with a heat-insulating material 45, but the storage temperature gradually decreases due to heat radiation. The control section 54 detects the storage temperature by the storage temperature detection section 51. Then, if the storage temperature falls below the lower limit temperature (for example, 75 ° C), the compressor 2 is controlled to rotate at a low speed and is heated by the first radiator 3A to increase the temperature in the storage tank 41. At this time, although the second radiator 3 is also heated, since water does not flow in the water flow path 9, once the heat exchanger 10 is warm, it no longer absorbs heat. Then, if the storage temperature exceeds a predetermined temperature (for example, 80 ° C), the operation of the compressor 2 is stopped. In this way, the temperature keeping operation can be performed to keep the temperature of the storage tank 41 close to a predetermined temperature. 10. Although the first radiator 3A is provided inside the storage tank 41 in this embodiment, the radiator may be structured such that the radiator is wound around the periphery of the storage tank 41 and tightly coupled to the periphery. In addition, instead of using the first radiator 3A, the storage tank 41 may be insulated by a general heater.

In the present embodiment, the control unit 54 controls the mixing ratio of the mixing valve 34 to be changed in accordance with the elapsed time and the mixing temperature when hot water supply is started. However, the mixing valve 34 may be a switching valve for switching the flowing water in the storage tank 41 and the flowing water in the hot water supply circuit upstream portion 39. At this time, once the storage temperature of the storage tank 41 is set to the target temperature of the hot water supply, and the outlet temperature from the water flow path 9 rises to near the target temperature, it is controlled to change the flowing water from the storage 20 storage tank 41 to the upstream portion 39. According to this structure, compared with the mixing valve 34, the change-over valve is a simpler mechanism, is easy to control, and is suitable for cost reduction. In the hot water supply device according to this embodiment, the heat pump circulation mechanism 7 is a supercritical heat pump circulation mechanism having a refrigerant pressure equal to or higher than a critical pressure. In addition, the heat exchanger 10 is heated by a refrigerant that is raised above a critical pressure. 17 574491 发明, description of the invention

Flowing water in the water flow path 9. Since the refrigerant flowing in the refrigerant flow path 8 of the heat exchanger 10 is pressurized to a pressure above the critical pressure by the compressor 2, the temperature will not be condensed even if the heat is taken away by the flowing water in the water flow path 9 and the temperature drops. Therefore, in the entire field of the heat exchanger 10, a temperature difference of 5 degrees is easily formed between the refrigerant flow path 8 and the water flow path 9, high-temperature hot water can be obtained, and heat exchange efficiency can be improved. However, it is also possible to use a general heat pump circulation mechanism below the critical pressure. This is the same in each embodiment described below.

In the hot water supply device of this embodiment, in the heat exchanger 10, the flow direction of the refrigerant flow path 8 and the flow direction of the water flow path 9 are opposite to each other. Thereby, in the heat exchanger 10, the heat transfer between the refrigerant flow path 8 and the refrigerant flow path 9 can be uniform, the heat exchange efficiency is good, and high-temperature hot water can flow out. This is the same in each of the following embodiments. (Second Embodiment)

Fig. 2 is a configuration diagram of a heat pump hot water supply device 15 according to a second embodiment of the present invention. In Fig. 2, a difference from the first embodiment is that a heating portion 60 is provided instead of the heating portion 38. The heating section 60 is configured to include a heat storage section 61 aligned with the hot water supply circuit 13. Another difference is that the heat storage unit 61 arranges the inlet pipe 63 on the upper part of the storage tank 62 and mixes the hot water from the storage tank 62 and the water (hot water) from the heat exchanger inside the storage tank 62. 20 Furthermore, the storage temperature during the holding operation of the storage tank 62 is set to the same temperature as the target temperature (for example, 45 ° C) for hot water supply. However, if the storage temperature is low, the capacity of the storage tank 62 becomes large. In the above configuration, if hot water is supplied from the state where the heat exchanger 10 is completely cooled, cold water close to the feed water temperature will flow into the storage 18 from the inlet pipe 63.

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存 槽 62。 Storage slot 62. In this way, from the perspective of the temperature difference from the warm water inside the storage tank 62, the inflowing water will flow into the bottom of the storage tank 62, and only the warm water inside will flow out of the outlet pipe 44. Therefore, immediately after the hot water supply is started, hot water close to the target temperature of the hot water supply can flow out. If the temperature of the inflow 5 from the inlet pipe 63 rises, it will mix with the warm water in the upper part in the storage tank 62 and flow out from the outlet pipe 44. When hot water having a higher temperature than the storage temperature flows out, hot water having a higher temperature than the storage temperature flows from the inlet pipe 63 into the storage tank 62. At this time, since the specific gravity of the hot water flowing in is light, it flows to the upper end of the storage tank 62 and still flows out of the outlet pipe 44. In this way, 10 rows of hot water and water can be mixed in the storage tank 62. As described above, in the present embodiment, the heat storage unit 61 is connected to the hot water supply circuit 13 in series, so that the hot water supply delay at the start of hot water supply can be made up and the hot water supply at a stable temperature can be realized. In addition, since the mixture can be naturally and appropriately mixed in the storage tank 62, a mixing section is not required, and the cost can be reduced.

(Third Embodiment) Fig. 3 is a configuration diagram of a heat pump-type hot water supply device according to a third embodiment of the present invention. In Fig. 3, a difference from the configuration of the second embodiment is that a heating section 70 is provided instead of the heating section 60. The heating section 70 is configured to have a heat storage section 71 arranged in a line with the water supply pipe 11. Another difference is that the heat storage section 71 arranges the inlet pipe 73 at the bottom of the storage tank 72. Furthermore, the storage temperature during the holding operation of the storage tank 72 is set to the same temperature as the target temperature (e.g., 45t) of hot water supply. In the above structure, if hot water is supplied from 19 574491 when the heat exchanger 10 is completely cooled, cold water will flow from the water supply pipe 11 to the bottom of the storage tank 72, and warm water from the storage tank 72 will flow out from the outlet pipe 44 . Then, when the heating amount of the heat exchanger 10 is increased, the number of revolutions of the compressor 2 is controlled by the temperature detected by the hot water temperature detecting section 22, and the outflow hot water temperature at the target temperature is maintained.

As described above, in the present embodiment, the heat storage section 71 is arranged upstream of the heat exchanger 10. Thus, when the heating of the heat exchanger 10 is delayed, the heat storage section 71 is supplemented. When the heating capacity of the heat exchanger 10 increases, the compressor 2 is controlled by the feedback control of the temperature of the hot water flowing out, and 10 can usually maintain the target hot water supply temperature. In addition, even if the target temperature is changed, the outflow hot water temperature can be changed immediately. Furthermore, since the heat exchanger 10 is warmed by the warm water in the storage tank 72 when hot water supply is started, the temperature of the heat pump circulation mechanism 7 is also increased at a faster rate. 15 In this embodiment, the heat storage unit 71 and the water supply pipe are configured

11 in a row. However, if it is arranged in parallel with the water supply pipe 11 and the storage temperature is set to be higher than the target temperature of hot water supply, the flowing water of the water supply pipe 11 and the hot water in the heat storage section are mixed to a temperature close to the target temperature and the When flowing to the heat exchanger 10, the heat storage section 71 can be miniaturized due to high-temperature heat storage. 20 In the first and second embodiments, the heat storage unit is disposed downstream of the heat exchanger 10, and in the third embodiment, it is disposed upstream. However, the heat storage section may be arranged in parallel with the heat exchanger 10, or the heat storage section may be arranged upstream of the heat exchanger 10 to mix the flow of water from the water flow path 11 and the flow of the heat storage section. In addition, the same effect can be obtained even if the heat exchanger 10 20 574491 is arranged in the heat storage section. (Fourth Embodiment) Fig. 4 is a configuration diagram of a heat pump-type hot water supply device according to a fourth embodiment of the present invention. In Fig. 4, a difference from the first embodiment is that a heating portion 80 is provided instead of the heating portion 38. The heating section 80 is composed of a water circulation path 81 formed by including the water flow path 9 and a heat storage section 82 disposed on the water circulation path 81. Then, in order to maintain the temperature of the circulating water in the water circulation path 81 and the heat storage unit 82, the water flow path 9 of the heat exchanger 10 is driven by heating the heat pump circulation mechanism 7 and generating natural convection in the water circulation path 81. The heat storage unit 82 10 is a storage tank 83 having an inlet pipe 43 and an outlet pipe 44 arranged above and below, and a mixing valve for mixing the flowing water from the outlet pipe 44 and the flowing water from the water flow path 9 and flowing the hot water supply circuit 13 34. The water circulation path 81 is structured such that the water flow path 9 and the mixing valve 34 and the storage tank 83 communicate with each other in a ring shape. In the above structure, if hot water is supplied from 15 when the heat exchanger 10 is completely cooled, cold water will flow from the water supply pipe 11 into the water flow path 9 and the storage tank 83, and cold water from the outlet of the water flow path 9 and from The warm water in the storage tank 83 is mixed by the mixing valve 34 and flows to the hot water supply circuit 13. At this time, since the opening degree of the mixing valve 34 is determined by the detection temperature of the hot water temperature detecting section 22, the temperature of the hot water flowing to the hot water supply circuit 13 is controlled to a target temperature of 20 degrees. Then, when the heating amount of the heat exchanger 10 is increased, the proportion of hot water flowing out of the storage tank 83 is reduced by the temperature detected by the hot water temperature detecting section 22. When the temperature of the hot water flowing out of the water flow path 9 reaches the target temperature, the hot water flowing out of the storage tank 83 is stopped. When the supply of hot water is stopped, the amount of heat stored in the storage tank 83 will be due to the supply of heat 21 574491

% Invention Description

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When the water flows in, it drops. Here, the control unit 54 first returns the mixing valve 34 to the mixing state. When the storage temperature detection unit 51 detects a decrease in the storage temperature (for example, 75 ° C or lower), the heat pump cycle mechanism 7 is driven and the compressor 2 is rotated at a low speed. Thereby, the high-temperature and high-pressure refrigerant 5 flows to the refrigerant flow path 8 and heats the water flow path 9. If the water temperature in the water flow path 9 rises and is higher than the water temperature in the storage tank 83, the water in the water flow path 9 rises due to the temperature difference between the two, and convection occurs in the water circulation path 81. Further, if the temperature in the storage tank 83 rises and the temperature detected by the storage temperature detecting section 51 exceeds a predetermined temperature (for example, 80 ° C), the heat pump cycle machine 10 is stopped. By repeating this operation and stopping, the temperatures of the circulating water in the heat storage unit 82 and the water circulation path 81 can be maintained.

As described above, according to the structure of the fourth embodiment, the temperature of the water flow path 9 and the water circulation path 81 including the heat storage section 82 is maintained, and the hot water of the water circulation path 81 is caused to flow out when hot water supply is started. Therefore, the temperature of the hot water flowing out from the hot water supply end 12 15 becomes faster. In addition, when the heat pump circulation mechanism 7 is stopped, the heat of the water circulation path 81 warms the heat exchanger 10, so that the temperature of the heat pump circulation mechanism 7 also increases quickly. In addition, since the water circulation path 81 is insulated by a heat pump, the efficiency is better than that of a heater or the like, and there is no risk of freezing. 20 Furthermore, since high-temperature hot water is stored in the heat storage unit 82, and the hot water flows out by mixing with the mixing valve 34 to an appropriate temperature, even if cold water flows into the water circulation path 81 when hot water starts to be supplied, the temperature of the hot water flowing out can be prevented low. In addition, although the water circulation in the water circulation path 81 during the heat preservation operation in this embodiment uses the flowing water generated by natural convection, the fiber can also be viewed at the water 22 574491 surface; The Jiwt M circulation circuit 81 is provided with a pump to circulate the flowing water forcibly. At this time, since a stable flow rate can be obtained, it is easy to control the storage temperature and the heating heat in the heat exchanger.

In addition, although the mixing ratio 5 is changed by the mixing valve 34 in the present embodiment, it may be constructed by fixing to a merging member of a certain ratio. At this time, the heating amount of the heat exchanger 10 must be controlled by the compressor 2 so as to cooperate with the reduction of the hot water in the storage tank 83 so that the temperature of the outgoing hot water reaches the target temperature. According to this structure, since the mixing valve 34 is simple to use, the cost can be reduced. Furthermore, although the heat storage section 82 is arranged in the water circulation loop 81 in this embodiment, the structure of the water circulation path 81 without the heat storage section 82 may be used. At this time, it is configured to detect the temperature of the circulating water in the water circulation path 81 by the storage temperature detecting section 51, and perform a heat preservation operation to maintain the temperature of the circulating water at a predetermined temperature. With this structure, although the temperature of the outflow hot water fluctuates slightly, the heat storage unit 82 is not required, and the cost can be significantly reduced. 15 In this embodiment, the heat pump circulation mechanism 7 is driven and the heat is heated.

The water flow path 9 of the exchanger 10 generates natural convection in the water circulation path 81 and heats it to keep it warm. In this way, heat preservation of the water circulation path is performed by a heat pump, so the efficiency is better than that of a heater, etc., and because the heat-recycling mechanism 7 is driven during heat preservation, the heat-recycling mechanism 5 itself The temperature rose 20 south faster. The water circulation path 81 may be directly heated by a heater, or the storage tank 83 may be directly heated by a heater. In addition, in a normal hot water supply and use state, the smaller the temperature difference between the refrigerant flow path 8 and the water flow path 9, the better the efficiency of the heat pump circulation mechanism 7. Therefore, if the feed water temperature detected by the water temperature detection unit 21 is followed,

发明 Description of the invention The required heating amount of the exchanger 10 and the resistance of the refrigerant flow path of the decompression section 4 are controlled so as to minimize the temperature difference between the refrigerant flow path 8 and the water flow path 9, so that high-efficiency operation can be performed.

According to the first to fourth embodiments, in addition to heating the tap water in the heat exchanger, the heating section is used for heating. Therefore, even if the heating in the heat exchanger is insufficient, it can be supplemented by the heating section for heating. In addition, since the heating section does not directly affect the hot water temperature control by the heat exchanger, the controllability is excellent. Furthermore, since the heat exchange system between the refrigerant and water is performed by a heat exchanger regardless of the heating section, high-efficiency heat exchange can be performed. In addition, since the hot water of the 10 heat storage units is maintained at a predetermined temperature, the hot water supply is started even when the compressor or the heat exchanger is completely cooled. The hot water supply pipe and the heat exchanger are heated by the hot water of the heat storage unit. And hot water supply circuit, so the temperature of outflow hot water can increase very quickly. In addition, because the heat storage unit is insulated by a heat pump, its efficiency is better than that of a heater, etc.15, and because the heat pump circulation mechanism is driven during the heat preservation, the temperature rise rate at the beginning of hot water supply Get faster. In addition, since the temperature of at least one of the water supply pipe, the water flow path, and the hot water supply circuit is maintained, when the hot water supply is started, the hot water in the water circulation path flows out and the temperature rises faster. In addition, since the heat of the water circulation path warms the heat exchanger, the temperature rise rate of the heat pump circulation mechanism is also fast. In addition, since the size of the heat storage section is quite suitable, there is no problem that the heat storage section is too large to increase heat dissipation loss, and the installation space or weight becomes large. Furthermore, since the hot water temperature of the heat storage section is higher than the hot water supply temperature, the heat storage density is increased, so the size of the heat storage section is reduced, thereby reducing the installation space and weight. In addition, the water used for hot water supply is used as a heat storage unit to 24 574491 Λ '^' 'ί,' V, \;; ,,, ;; ^ ^ Λ ^ ^ ^ 佶, Zhuang Shao A, s β from You can save weight by pumping water on the right. As a heat storage material, its specific heat is large, and it is safe. When a supercritical thermal system circulation mechanism is used, the refrigerant flowing in the refrigerant flow path of the heat exchanger 5 is pressurized to a critical pressure or higher by a compressor. Therefore, even if the temperature is lowered due to the heat being taken away by the flowing water in the water flow path of the heat exchange H, the condensation does not occur. For this reason, in the heat exchange poem, the temperature difference between the refrigerant flow path and the water flow path is easy to form, and high-temperature hot water can be obtained, and the heat exchange efficiency can be improved.

In addition, according to the first and fourth embodiments, one of the water supply pipes, the heat exchanger, and the hot water supply circuit can be freely set to be heated by the heat of the heat storage section by changing the flow rate of the heat storage section 10. Heat of water. In addition, since the hot water from the heat storage section can be mixed with the water in the water supply pipe, the heat exchanger, and the hot water supply circuit in a predetermined ratio, the predetermined hot water temperature can be obtained immediately. In addition, the hot water from the heat storage unit and the water from one of the 15 water supply pipe, the heat exchanger, and the hot water supply circuit can be changed and flowed. Therefore, when the hot water supply is started or the defrosting is started, the heat exchange is performed When the heating of the device is insufficient, hot water from the heat storage section can be used without dissatisfaction of the user. (Fifth Embodiment) Fig. 5 is a configuration diagram of a heat pump-type hot water supply device according to a fifth embodiment of the present invention. In Fig. 5, in the heat pump cycle mechanism 7, the compressor 2, the radiator 3, the pressure reducing section 4, and the heat absorber 5 are connected to each other via a refrigerant flow path 1 in a closed circuit. The heat exchanger 10 has a water flow path 9 for heat exchange with the refrigerant flow path 8 of the radiator 3. Used to supply tap water directly to water channel 9 25 574491 Description of the invention Ji Qiang g fiber key scale release

The water supply pipe 11 is connected to a hot water supply circuit 13 that allows hot water flowing out of the water flow path 9 to pass through to a hot water supply terminal 12 composed of a shower head 16 or a faucet 17 or the like. The load setting unit 18 is used to set a required heating amount in the heat exchanger 10. The heating control unit 19 controls the heating amount of the heat exchanger 10 in accordance with the setting value of the load setting unit 18 5. The water supply pipe 11 is provided with a flow rate detection unit 20 for detecting the flow rate of the hot water supply circuit 13, and a water temperature detection unit 21 for detecting the temperature of the water supply to the heat exchanger 10. The hot water supply circuit 13 is provided with a hot water temperature detecting unit 22 for detecting the temperature of the hot water flowing out from the water flow path 9. The user sets the temperature arbitrarily by using the temperature setting unit 23 for setting the target temperature of the hot water supply.

The load setting unit 18 includes a first calculation unit 24, a second calculation unit 25, and an addition unit 26. The first calculation unit 24 calculates a first required heating amount from the deviation between the outflow hot water temperature and the target temperature output by the hot water temperature detection unit 22 and the temperature setting unit 23, respectively. The second calculation unit 25 calculates the second required heating amount from each value of the water temperature detection unit 21 15, the temperature setting unit 23, and the flow rate detection unit 20. The adding unit 26 adds the first required heating amount and the second required heating amount. The load setting unit 18 outputs the required heating amount after the addition. The heating control unit 19 includes a frequency control unit 27 for changing the number of revolutions of the compressor 2, and controls the number of revolutions of the compressor 2 in accordance with the required heating amount 20 set by the load setting unit 18. The heating control unit 19 changes the rotation speed of the compressor 2 and controls the heating amount of the heat exchanger in accordance with the detection value of the air temperature detecting unit 28 for detecting the air temperature. The amount of heating in the heat exchanger 10 changes in proportion to changing the number of revolutions of the compressor 2 in accordance with the temperature. Therefore, add 26 574491

The thermal control unit 19 memorizes the relationship between the heating amount of the heat exchanger 10 and the number of revolutions of the compressor 2 in advance for each temperature. Then, the number of control revolutions is set in accordance with the air temperature so that the required heating amount set by the load setting section 18 matches the heating amount of the heat exchanger 10. Thereby, even if the temperature changes, the hot water supply control can be performed with high accuracy. The load setting unit 18 and the heating control unit 19 are configured as control units 29 corresponding to the control units 54 of the first to fourth embodiments. These control sections may be integrally formed. · In the above structure, the operation and effect will be explained. In FIG. 5, if the faucet Π is turned on, the tap water starts to flow from the water supply pipe u. It is detected by the flow detection section 20 and a signal is sent to the load setting section 18. The load setting unit 18 calculates the required heating amount, and the heating control unit 19 controls the number of revolutions of the compressor 2 based on the calculated value. Then, the high-temperature and high-pressure refrigerant gas system discharged from the compressor 2 flows into the radiator 3 and heats the water flowing through the water flow path 9. Then, the heated water system passes through the hot water supply circuit 13 ^ and flows out from the hot water supply end 12. On the other hand, the refrigerant cooled in the radiator 3 is decompressed by the decompression section 4 and flows into the heat sink 5, where it absorbs heat energy such as atmospheric heat and solar energy, evaporates and gasifies, and returns to the compressor 2. Therefore, once the outflow of hot water is detected, the high-temperature and high-pressure refrigerant gas from the compressor 2 immediately flows into the radiator 3 and heats the water therein, and the hot water flows out from the hot-water supply end 12. When supplying hot water, the load setting unit 18 uses the same control method as the control unit 54 of the first embodiment to calculate the i-th required heating calculated by the first calculation unit 24 from the deviation between the hot water supply temperature and the target temperature. the amount. That is, 27 574491 performs feedback control of the temperature of the outflow hot water.

The first required heating amount can also be determined from the rate of change of the deviation between the outflow hot water temperature and the target temperature. If the hot water supply load is changed due to the flow rate or feed water temperature in the hot water supply, the variation rate of the deviation between the outflow hot water temperature and the target temperature 5 will be different. For example, under the same heating capacity, the more the flow rate, the more slowly the hot water temperature rises, and the less the flow rate, the faster the temperature rises. The relationship between the speed change and the required heating amount is memorized in advance, and the required heating amount is set from the change rate of the deviation of the outflow hot water temperature from the target temperature. In this way, it is possible to shorten the time required for stable control to the required heating amount rather than simply controlling the heating amount based on the temperature deviation.

On the other hand, the second required heating amount calculated by the second calculation unit 25 is a calculation of the hot water supply load, and the hot water supply load is the required heating amount. That is, the difference between the target temperature and the feedwater temperature is multiplied by the flow rate detected by the flow rate detection unit 20 to obtain a hot water supply load, and this is the second required heating amount. This 15 is a so-called feedforward control amount. Then, the adding unit 26 adds the first required heating amount and the second required heating amount to obtain the required heating amount. By adding the required heating amount feedback control, the hot water supply temperature can be accurately controlled to the target temperature. This control is also the same as that of the control unit 54 of the first embodiment. As described above, in the hot water supply device of this embodiment, the heat pump circulation mechanism 7 is connected to the compressor 2, the radiator 3, the pressure reducing unit 4, and the heat sink 5 through the refrigerant flow path 1 in a closed circuit. The refrigerant flow path 1 passes through a heat exchanger 10 for heat exchange with the water flow path 9. The water flow path 9 includes a hot water supply circuit 13 so as to communicate with the hot water supply terminal 12. A load setting unit 25 for setting a required heating amount in the heat exchanger 10 and a load setting unit 25 according to the negative 28 574491 are provided.

The heating control unit 19 controls the heating amount of the heat exchanger 10 by the setting value of the load setting unit 25. The required heating amount set by the load setting unit 25 is a necessary heat exchange amount including a hot water supply load or a thermal reaction delay, which is necessary for the heat exchanger. Further, since the heating control unit 19 controls the heating amount of the heat exchanger in accordance with the required heating amount, it is possible to perform hot water supply control without excessive or insufficient conditions.

The hot water supply device of this embodiment includes a flow rate detection unit 20 for detecting the flow rate of the hot water supply circuit. The load setting unit 18 calculates the required heating amount based on the detection value of the flow detection unit 20 as a standard. Since the hot water supply load is directly proportional to the flow rate, the estimated heating amount required here is related to the hot water supply load. Therefore, even if the hot-water supply load changes abruptly due to a change in the flow rate, the corresponding heating control can be performed quickly in accordance with the change in the hot-water supply load.

In addition, the hot water supply device of this embodiment includes a water temperature detection unit 21 for detecting the water supply temperature of the 15 water supply pipes, and the load setting unit 18 determines the required heating based on the detection value of the water temperature detection unit 21 the amount. Since the hot water supply load is directly proportional to the difference between the feed water temperature and the target temperature, if the feed water temperature decreases, the amount of heating required will increase, and if the feed water temperature increases, the required heating amount will decrease. Therefore, if the required heating amount can be estimated based on the feed water temperature and the heating control of the heat exchanger can be performed, even if the feed water temperature fluctuates, the temperature change of the outflow hot water accompanying the change can be suppressed to a minimum. The hot water supply device of this embodiment includes a temperature setting unit 23 for setting a target temperature for hot water supply. Since the target temperature is set by the temperature setting unit 23, a hot water temperature 29 574491 • xV.V that meets the user's expectations can be set: micro ::: 料 -¾¾: Enough :: 办 ^ 玖, description of the invention S: Fiber ::; Total recording of bumps and tender fibers: Fiber cat 'N # 、: ΪΪ: Sewing: The right hot water supply load of the right fiber is used as the required heating amount.

The hot water supply device of this embodiment includes a hot water temperature detection unit 22 for detecting the temperature of the hot water flowing out of the water flow path, and the load setting unit 18 is the temperature of the hot water flowing out from the hot water temperature detecting unit 22 The deviation from the target temperature of 5 calculates the required heating amount. The required heating amount calculated here is to determine the hot water supply load from the speed of deviation. If the hot water supply load is changed due to the amount of hot water supply or the feed water temperature, the speed of the deviation between the outflow hot water temperature and the target temperature will be different. For example, under the same heating capacity, the more the flow rate, the more slowly the temperature of the hot water rises, and the less the flow rate, the faster the temperature rises. Because the speed change is caught and the required heating amount is set, it is possible to shorten the time to stably control to the required heating amount rather than simply controlling the heating amount based on the temperature deviation. The hot water supply device of this embodiment further includes a water temperature detection unit 21 for detecting the water supply temperature of the water supply pipe, and a flow detection unit 20 for detecting the flow rate of the hot water supply circuit 15-13. Then, the load setting unit 18

The deviation between the detected value of the water temperature detecting unit 22 and the target temperature calculates a first required heating amount related to the feedback control. A second required heating amount related to the feedforward control is calculated from the values detected by the water temperature detection unit 21 and the flow rate detection unit 20 and the target temperature. Then, the first required heating amount and the second required heating amount 20 are added. Thereby, since the target heat is set quickly by feedforward control, and the target heat and current status are corrected by feedback control, stable and rapid control can be performed. In the hot water supply device of this embodiment, the heating control unit 19 is capable of controlling the number of revolutions of the compressor 2. That is, the relationship between the number of revolutions in advance and the heat exchange 30 574491 玖, description of the invention::, — ,, one one — one one —,,…, heart… 5 two heating device 10, and control the number of rotations In order to achieve the required heating 篁 set. By this', it is possible to control the number of revolutions which can obtain the required heating amount in a short time. The hot water supply device of this embodiment includes an air temperature detecting unit 28 for detecting the air temperature 5. The heating control unit 19 changes the setting value of the load setting unit 18 and controls the heating amount of the heat exchanger 10 in accordance with the detection value of the air temperature detecting unit 28. In this way, an error in the heating amount of the heat exchanger 10 due to a change in air temperature is corrected. Since the heat pump circulation mechanism 7 utilizes atmospheric heat and absorbs heat by the heat absorber 5, the heating amount in the heat exchanger 10 will have a great effect on the temperature of the gas 10. Therefore, for example, when the number of revolutions of the compressor 2 is controlled, even if the number of revolutions is the same, the heating amount is changed by the temperature. By controlling the heating amount of the heat exchanger 10 to offset the influence caused by the air temperature, accurate hot water supply control can be performed. In the present embodiment, the adding unit 26 adds the first required heating amount and the 152nd required heating amount to obtain the required heating amount. However, the required heating amount at the t-th may be used as the required heating amount, and the second required heating amount may be used as the required heating amount. It is also not necessary to add them, but to change them according to the hot water supply time or the temperature of the hot water flowing out, and it is also possible to multiply the coefficients of the heating required at the first and second heating and add them. Furthermore, the case where the first required heating amount and the second required heating amount are used separately and the case where they are added can be changed. As described above, there are different hot water supply conditions due to changing the combination or addition conditions of the sum of the i-th required heating amount and the second required amount of heating, thereby further improving the stability and reactivity of the control. Also, in this embodiment, it is in the second calculation section 25, and at the target 31 574491 Ning Fang Yi Zhi Ji weaving: Li Ningxian Li Li Jianqiang Ji; Fiber Xi: Zhen Li? ^ Total: Touching obstacles § :;: S touch hot S miscellaneous, business; ϊ ϊ ί, λ ', ... λ W ,,' ,,, 々w > w, X; righteousness, ν ^ ϋ 'r, day to day Day, liter, and hunger ^ 3 The difference between the temperature and the feedwater temperature is multiplied by the flow rate to obtain the hot water supply load, and the calculated hot water supply load is used as the second required heating amount. However, if only a simple hot water supply load setting is to be performed, it can also be used to estimate the flow rate multiplied by a predetermined constant. At this time, although the calculation accuracy 5 of the hot water supply load may deteriorate, since the water temperature detecting section 21 and the temperature setting section 23 are not required, the cost can be reduced.

Furthermore, the calculation of the hot water supply load in the second calculation unit 25 may be performed by multiplying the difference between the feed water temperature and the assumed target temperature by an estimated value of a predetermined constant. At this time, although the calculation accuracy of the hot-water supply load may also deteriorate, 10 the cost can be reduced because the flow detection unit 20 and the temperature setting unit 23 are not required. However, a flow switch to detect the start of hot water supply is necessary. (Sixth embodiment)

Fig. 6 is a configuration diagram of a heat pump type hot water supply device according to a sixth embodiment of the present invention. In Fig. 6, the difference from the structure of the fifth embodiment is the structure of the 15 load setting unit 18. That is, there is an elevation setting section 30 for setting the amount of heat in accordance with the thermal response delay of the heat pump cycle mechanism 7 or the heat exchanger 10, and when setting the required heating amount, the setting of the elevation setting section 30 is added by the addition section 26 value. When hot water is supplied from the state in which the heat pump circulation mechanism 7 is cooled, the temperature of the compressor 2 or the radiator 3 will rise, and the temperature of the heat sink 5 20 will decrease. Heat outside the hot water supply load. The heat amount corresponding to the aforementioned thermal reaction delay of the heat pump circulation mechanism 7 or the heat exchanger 10 means the heat amount. This heat is obtained by multiplying the temperature difference between the temperature of the heat pump circulation mechanism 7 or the heat exchanger 10 before operation and the temperature during normal operation by the heat capacity. However, normal operation 32 574491 * Invention description si, s: BSI_

The temperature difference during rotation will vary greatly depending on the location. Therefore, in the sixth embodiment, the temperature difference between the temperature detected by the temperature detection unit 22 before the operation and the value set by the temperature setting unit 23 is used as a representative value, and the coefficient is obtained by multiplying the factor by a factor. However, since the amount of heat obtained by the raising setting unit 30 is the total amount of heat required for raising the temperature 5, the compressor 2 must be converted into heat per unit time in order to control the compressor 2. Therefore, the adding unit 26 first adds the hot water supply load calculated by the second calculating unit 25 and the set heat of the raising setting unit 30. Next, the phase heating amount is divided by the maximum heating amount at the maximum number of revolutions of the compressor 2 to obtain the operating time of the maximum heating amount. Then, the required heating amount in this 10-time period is set as the maximum heating amount of the compressor 2. When the operation time has passed, the addition of the set values by the raising setting unit 30 is ended, and the operation returns to the operation state as in the fifth embodiment.

As described above, in the sixth embodiment, the amount of heat 15 of the heat reaction delay portion of the heat pump circulation mechanism 7 or the heat exchanger 10 at the start of the hot water supply operation is added to the hot water supply load, and the compressor 2 The maximum amount of heating to heat the heat reaction delay part. That is, the hot water supply device system load setting unit 18 according to the present embodiment includes an increase setting unit 30 for setting the amount of heat in accordance with the thermal response delay of the heat pump cycle mechanism 7 or the heat exchanger 10. In addition, when setting the required heating amount, the setting value of the raising setting part 30 is added. Therefore, it is possible to perform the heating control which has been added with the thermal reaction delay portion at the beginning of hot water supply or when the hot water supply load is changed, and the thermal reaction delay can be suppressed to a minimum. In addition, the temperature difference between the temperature detected by the hot water temperature detection unit 22 and the set value of the temperature setting unit 23 before the operation is multiplied by a coefficient to obtain a thermal response delay 33 574491 _MEDIA_Condensing_Lai Fiber Fiber Fiber

Part of the heat. Therefore, it is not necessary to prepare a detection section, and the control can be realized at low cost. In the sixth embodiment, the heat difference between the temperature detected by the hot water temperature detection unit 22 and the value set by the temperature setting unit 23 before the operation is multiplied by a factor of 5 to determine the heat of the thermal reaction delay portion. However, it is also possible to use the temperature of the heat exchanger 10, the compressor 2, the heat sink 5, the discharge portion of the compressor 2 of the refrigerant flow path 1, and the like.

(Seventh Embodiment) Fig. 7 is a configuration diagram of a heat pump hot water supply device 10 according to a seventh embodiment of the present invention. In Fig. 7, the difference from the fifth embodiment is that the heating control unit 19 controls not only the compressor 2 but also the refrigerant flow path resistance of the decompression unit 4 and the heat absorption amount of the heat sink 5.

The pressure reducing section 4 is composed of a restrictor (not shown) and a stepping motor (not shown) for driving the restrictor, and the resistance of the refrigerant 15 flow path is changed by driving the restrictor. Then, the heating control section 19 sets the relationship between the refrigerant flow path resistance of the decompression section 4 and the heating amount in the heat exchanger 10 in advance, and controls the refrigerant flow path resistance to achieve the required heating amount set by the load setting section 18 . When high-temperature hot water must be discharged, or the heating amount is insufficient due to low outside air temperature, etc., it has the effect of increasing the resistance of the refrigerant flow path to ensure that the amount of heating of the heat exchanger is the required heating amount. In addition, under normal hot water supply and use conditions, the smaller the temperature difference between the refrigerant flow path 8 and the water flow path 9, the better the efficiency of the heat pump circulation mechanism 7. Therefore, if the water temperature detected by the water temperature detecting section 21 is maintained, and the required heating amount in the heat exchanger 10 is ensured, and the refrigerant flow path resistance of the decompression section 4 is controlled 34 574491 玖, description of the invention βι

By minimizing the temperature difference between the refrigerant flow path 8 and the water flow path 9, it is possible to operate efficiently.

The amount of heat absorbed by the heat sink 5 is controlled by changing the number of rotations of the motor of the fan 32 and changing the amount of air supplied to the heat sink 5. The heating control unit 19 sets the relationship between the air volume of the fan 32 and the heat amount in the heat exchanger 10 in advance, and controls the air volume of the fan 32 to achieve the set required heating amount. When the hot water supply load is extremely small, the required heating amount of the heat exchanger 10 is too small, and the rotation speed of the compressor 2 cannot be reduced any more, the air volume of the fan 32 is reduced. Thereby, the heating amount of the heat exchanger 10 is reduced and controlled to a required heating amount. In addition, when the maximum heating capacity of the compressor 2 is insufficient, the air volume of the fan 32 is increased and the heating capacity of the heat exchanger 10 is increased to control the required heating capacity. As described above, the hot water supply device of this embodiment is the heating control unit 19 that can control the refrigerant flow path resistance of the decompression unit 4. That is, the relationship between the refrigerant flow path resistance of the decompression section 15 4 and the heating amount in the heat exchanger 10 is set in advance, and

Refrigerant flow path resistance to achieve the required heating amount set. Therefore, when high-temperature hot water must be discharged, or the heating capacity is insufficient due to low outside air temperature, etc., by increasing the resistance of the refrigerant flow path, the heating capacity of the heat exchanger can be ensured. In addition, the refrigerant flow path resistance of the pressure reducing section 4 is controlled in accordance with the temperature detected by the water temperature detecting section 21. That is, the relationship between the resistance of the refrigerant flow path and the heating amount in the heat exchanger 10 in the decompression section 4 according to the feed water temperature is set in advance, and the resistance of the refrigerant flow path is controlled to achieve the set required heating amount. When high-temperature hot water must be discharged, or the amount of heating is insufficient due to low outside air temperature, etc., by increasing the resistance of the refrigerant flow path, the heat exchanger 1 〇 plus 35 574491 can be ensured.

The heat is the amount of heating required. In addition, when hot water is normally supplied, the resistance to the refrigerant flow path with the best heating efficiency can be controlled by the water temperature. The hot water supply device of this embodiment is a heating control unit 19 that can control the amount of heat absorbed by the heat sink 5. Therefore, the amount of heat absorbed by the heat sink 5 from the heat of the atmosphere is controlled by the air volume of the fan 32. Then, the relationship between the air volume of the fan 32 and the heating amount in the heat exchanger 10 is set in advance, and the air volume of the fan 32 is controlled to achieve the set required heating amount. When the hot water supply load is extremely small, the required heating capacity of the heat exchanger 10 is too small, and the rotation speed of the compressor 2 cannot be reduced, etc., the air volume of the fan 32 is reduced, thereby reducing the heat 10 exchanger 10 The heating amount is controlled to the required heating amount. (Embodiment 8) Fig. 8 is a block diagram of a heat pump type hot water supply device according to an eighth embodiment of the present invention. In FIG. 8, the structure differs from the fifth embodiment in that a branch pipe 33 extends from the central portion of the water flow path 9 of the heat exchanger 10 and is connected to a mixing valve 34 provided in the hot water supply circuit 13. The heat transfer conditions of the heat exchanger 10 are changed. In this structure, the heating control unit 19 controls the opening degree of the β control mixing valve 34 to control the amount of water flowing downstream from the branch pipe 33 of the water flow path 9. Then, by controlling the flow rate or flow velocity of the water flow path 9 and changing the heat transfer conditions of the refrigerant flow path 8 and the water flow path 9, the heating amount of the heat exchanger 10 is controlled. When the amount of water decreases, the thermal conductivity in the water flow path 9 decreases, and as a result, the amount of heating decreases. Then, if it does not flow downstream from the branch pipe 33 of the water flow path 9, Xiao cannot perform heat exchange, and the heat transfer area becomes approximately -half, which has the same effect. In this way, if the length of the water flow path or the leeches is changed, the heating day will change in proportion. If the 36,574,491-year-old 'stupid explanation ,,,, ...:, etc. conditions are changed, the heating amount will be changed immediately, so it can be controlled to improve the thermal reactivity', and it can also cope with the sudden change of the required heating amount. In this way, in the hot water supply device of this embodiment, the heating control unit 19 controls the heating amount by changing the heat transfer conditions such as the flow velocity or heat of the water flow path 9 of the heat exchanger 10. Specifically, the length or amount of water in the water flow path of the heat exchanger 10 is changed. Since the heating amount of the heat exchanger 10 is directly proportional to the heat transfer area or thermal conductivity, if the length or amount of the water flow path is changed, it can be proportional to the heating amount of the land coup. If these conditions are changed, the amount of heating will be immediately changed. Therefore, control to improve thermal reactivity can be performed. In the eighth embodiment, although the branch pipe 33 is formed from the central portion of the heat exchanger 10, it can be branched upstream of the heat exchanger 10 and connected in parallel with the heat exchanger 10 to change the flow of heat. Exchanger 10 overall traffic. The same effect can be obtained by diverging from the upstream side or the downstream side of the heat exchanger 10. 5 Also, the load setting unit 18 and the heating control unit 19 described in the fifth to eighth embodiments may be included in the control unit 54 of the first to fourth embodiments. If the structure is as above, more delicate hot water supply temperature control can be performed, and the follow-up of hot water supply load can be improved. (Ninth Embodiment) > Fig. 9 is a configuration diagram of a heat pump type hot water supply device according to a ninth embodiment of the present invention. As shown in Fig. 9 ', this embodiment is a system in which three compressors 2A, 2B, and 2C are arranged in parallel to the heat pump cycle mechanism 7, and a control unit 54 controls the number and revolutions of the compressors 2A, 2B, and 2C. In this embodiment, the rotation speed of the compressor 2A is controlled, and delicate heating capacity control is performed. 37 574491

From,%, V! S ,,,,,, '<:', ❖, Recognition, ', V ,,,, 0 ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, SNSN ss,', s, s,, ΛΛ , ΥΛ, 方今, w 5 \ d ,,,,,,, ^, Ί, Ά》 Ά ,,, > ,, \》 ',,', '彳 ,,: 夂 ,,,), ,,,,,, Λ ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, loose, ^ 5¾ ^ ¾fen proud 6¾¾¾¾¾¾ , 2C is for switch control. When a hot water supply load, such as filling hot water in a shower or bath, requires strong capacity, two or three compressors are operated. When the load of hot water supply such as washing dishes in the kitchen is very small in summer, the compressor can be operated by 2A alone to cope with a wide range of changes in hot water supply load.

As described above, the hot water supply device of this embodiment is provided with a plurality of compressors 2A, 2B, and 2C in the heat pump circulation mechanism 7, and the control unit 54 controls the number of compressors. When the load on hot water supply will change drastically, a compressor has its limits in terms of control range, and it cannot perform satisfactory hot water supply control. However, as described above, in the method of controlling the number of compressors, if the number of units is changed in accordance with the hot water supply load, it is possible to cope with a wide range of changes in the hot water supply load.

In addition, the number of compressors may be two, and the same effect can be obtained even with three or more compressors. In addition, the number of revolutions of all multiple compressors can be controlled, and the number of control units can be changed smoothly. Furthermore, the compressors can be connected in a row and the discharge pressure can be controlled. (Tenth embodiment) Fig. 10 is a configuration diagram of a heat pump-type hot water supply device according to a tenth embodiment of the present invention. As shown in Fig. 10, the heat pump hot water supply device of this embodiment has two heat pump circulation mechanisms. The first unit 92D, which constitutes the first heat pump circulation mechanism, contains a heat sink 5D including a fan 32D, a compressor 2D, a pressure reducing section 4D, and a driving section 93D, and is arranged outdoors as an outdoor device. The second unit, 92E, which constitutes the second heat pump circulation mechanism, contains a heat sink 5E including a fan 32E, a compressor 2E, and a minus 38 574491.

The pressing portion 4E and the driving portion 93E are similarly arranged outdoors as outdoor equipment. A heat exchanger 87 connected to the water supply pipe 11 and the outflow hot water pipe 13 is housed in the third unit 86 and is arranged in the room.

The heat exchanger 87 is provided on the upstream side and the downstream side of the water flow path 9 with two heat radiators 88 and 89, and the two heat radiators respectively heat the water flowing in the water flow path 9. The refrigerant flow path 90D and the refrigerant flow path 91D connect the first unit 92D and the radiator 88 of the third unit 86. The refrigerant flow path 90E and the refrigerant flow path 91E connect the second unit 92E and the radiator 89 of the third unit 86. Then, the control unit 94 outputs an operation instruction to the driving unit 93D and the driving unit 93E in accordance with the calculated hot water supply load to perform hot water supply control. The second unit 92E is stopped in accordance with the hot water supply load at this time, and the hot water supply at the target temperature is achieved by controlling the number of revolutions of the compressor 2D and the compressor 2E. The combination of the control section 94 and the driving section 93D or the driving section 93E corresponds to the control section 15 of the first to fourth embodiments 54 or the control section 29 of the fifth to eighth embodiments. Any of the foregoing may include a load setting unit 18 and a heating control unit 19 according to the fifth to eighth embodiments. In the above structure, since the maximum hot water supply capacity is changed by increasing or decreasing the number of hot fruit constituted, the number of units can be easily adjusted according to the needs of 20 families. Hot water supply capacity. In addition, since the two heat pump circulation mechanisms are divided into three units to be arranged, the weight can be dispersed, and handling or construction can be easier. In addition, when the load for hot water supply is greatly changed, as described above, a conventionally constructed heat pump cycle mechanism has a limit in terms of control range 39 574491 Invention Description, and it is impossible to perform satisfactory hot water supply control. As described in this embodiment, in the method of providing two heat pump circulation mechanisms and controlling the number of operation units or the number of compressor revolutions, a wide range of hot water supply capacity can be changed in accordance with the hot water supply load. In addition, at the start of the operation, the temperature of the hot water is increased faster by fully operating the two heat pump five-loop mechanism. Furthermore, since a heat pump circulation mechanism can be stopped when the hot water supply load is small, high-efficiency operation can be performed even at a low load.

In the present embodiment, although the heat exchanger 88 and the heat radiator 89 of the heat exchanger 86 are arranged in parallel to the water flow path 9 on the upstream side and the downstream side, 10 the two heat radiators may be arranged in parallel to the water flow path 9. At this time, since the inlet water temperature of the water flow path 9 to the radiator can be made the same as the tap water temperature, the heat exchange rate will be increased. In addition, as described above, the two radiators can be arranged in parallel, and the water flow path 9 can also be divided in parallel with the radiators and made to face each other, so that the heating amounts of the two radiators are independent and Be controlled 15 times. In this case, a structure in which a plurality of heat exchangers are provided in parallel may be used. Furthermore, the hot water supply temperature can also be controlled by controlling the mixing ratio of the confluence of the juxtaposed water flow paths. Also, as in the other embodiments, if the air temperature detection unit 28 is provided and the detection result is input to the control unit 94 and reflected in the control of the driving units 93D and 20 93E, the hot water supply can be controlled more delicately. ability. Furthermore, in this embodiment, although it is configured to have two heat pump circulation mechanisms, by further increasing the number of heat pump circulation mechanisms, it is possible to realize a large capacity and wide variability of hot water supply capacity. Moreover, in this embodiment, although the heat pump circulation mechanism 40 574491 is divided into three units, even if it is integrated, the hot water supply capacity can be improved. As described above, if a large number of heat pump circulation mechanisms are provided Furthermore, the method of controlling the number of operating units or the number of revolutions of the compressor is applicable to the first to ninth embodiments 5 and can further improve the followability of the hot water supply load. L schema simple explanation 3

Fig. 1 is a configuration diagram of a heat pump type hot water supply device according to a first embodiment of the present invention. Fig. 2 is a configuration diagram of a heat pump hot water supply device 10 according to a second embodiment of the present invention. Fig. 3 is a configuration diagram of a heat pump type hot water supply device according to a third embodiment of the present invention. Fig. 4 is a configuration diagram of a heat pump type hot water supply device according to a fourth embodiment of the present invention. 15 FIG. 5 is a heat pump hot water supply device according to a fifth embodiment of the present invention

Composition diagram. Fig. 6 is a configuration diagram of a heat pump type hot water supply device according to a sixth embodiment of the present invention. Fig. 7 is a configuration diagram of a heat pump hot water supply device 20 according to a seventh embodiment of the present invention. Fig. 8 is a configuration diagram of a heat pump type hot water supply device according to an eighth embodiment of the present invention. Fig. 9 is a configuration diagram of a heat pump type hot water supply device according to a ninth embodiment of the present invention. 41 574491 发明 Description of the invention Fig. 10 is a block diagram of a heat pump-type hot water supply device according to a tenth embodiment of the present invention. Fig. 11 is a block diagram of a conventional heat pump hot water supply device. [Representative symbol table of main components of the figure] 1 ... Miscellaneous flow path 22 ... Hot water temperature detection section 2, 2D, 2E ... Compressor 23 ... Temperature setting section 3 ... Second radiator 24 ... 1 Calculation section 3A ... First heat radiator 25 ... Second calculation section 4, 4D, 4E ... Decompression section 26 ... Addition section 5, 5D, 5E ... Heat sink 27 ... Frequency control Section 7 ... Heat pump circulation mechanism 28 ... Gas measurement section 8 ... Miscellaneous flow path 29 ... Control section 9 ... Water flow path 30 .. · Elevation setting section 10 ... Heat exchanger 32, 32D, 32E ... · Fan 11 ··· Water supply pipe 33 ··· Dividing pipe 12 ... Hot water supply end 34 ... Mixing valve 13 ... Hot water supply circuit 38 ... Heating section 15 ... Hot water supply pipe 39 " Upstream section 16 ... Shower head 40 ... Heat storage unit 17 ... Faucet 41 ... Storage tank 18 ... Load setting unit 43 ... Inlet pipe 19 ... Heating control unit 44 ... Outlet pipe 20 ... Flow detection unit 45 ... Hot material 21 ... Water temperature detection section 46 ... Bifurcation section

42 574491

47 ... Confluence unit 51 ... Storage temperature detection unit 54 ... Control unit 60 ... Heating unit 61 ... Heat storage unit 62 ... Storage tank 63 ... Inlet pipe 70 ... Heating unit 71 ... ·· Heat storage section 72 ... Storage tank 73 ··· Inlet pipe 80 ··· Heating section 81 ... Water circulation path 82 ... Storage tank 83 ··· Inlet pipe 86 ··· Third unit 87 ... Heat exchanger 88, 89 ... radiator 92D ... 1st unit 92E ... 2nd unit 93D, 93E ... drive unit 94 ... control unit 201 ... refrigerant flow path 202 ... compressor 203 ... radiator 204 ... Decompression section 205 ... heat absorber 207 ... heat pump circulation mechanism 208 ... refrigerant flow path 209 ... water flow path 210 ... heat exchanger 211 " water supply pipe 212 ... hot water supply end 213 ... hot water supply circuit 214 ... temperature sensor 215 ... converter

90D, 90E, 91D, 91E ... Refrigerant flow path 43

Claims (1)

574491 1. A heat pump type hot water supply device, comprising: a heat pump circulation mechanism including a compressor, a heat radiator, a pressure reducing section, a heat absorber, and a structure including the compressor, the heat radiator, the pressure reducing section, and the heat absorber A closed-circuit refrigerant flow path; a heat exchanger having a water flow path for heat exchange with the refrigerant flow path; a water supply pipe for supplying tap water to the water flow path; a hot water supply circuit connected to be connected from the foregoing The water flow path passes water to the end of the hot water supply; and 10 heating sections for heating water in at least one of the paths formed by the water supply pipe, the water flow path, and the hot water supply circuit. 2. The heat pump type hot water supply device according to item 1 of the patent application range, wherein the heating section includes a heat storage section aligned with any one of the water supply pipe, the heat exchanger, and the hot water supply circuit. . 15 3. The heat pump hot water supply device according to item 1 of the patent application range, wherein the heating section has a heat storage section connected in parallel to any one of the water supply pipe, the heat exchanger, and the hot water supply circuit. 4. The heat pump hot water supply device according to any one of claims 2 and 3, wherein the heating section includes any one of the water supply pipe, the heat exchanger, and the hot water supply circuit. The mixing section of the flowing water and the water heated by the heat storage section. 5. The heat pump type hot water supply device according to any one of claims 2 and 3, wherein the heating section is provided to change any one of the water supply pipe, the heat exchanger, and the hot water supply circuit. The flowing water and 44 20 5 10 15 20 hunt for the conversion part of the water heated by the thermal storage part and flowing. The items 2 and 3 include any one of the items of the reduced-type hot water supply device. The heating section includes a heat preservation section for maintaining the heat storage temperature at a predetermined temperature. 7 ·: The heat pump type hot water supply device according to item 6 of the patent application, wherein the heating section mentioned above includes the aforementioned radiator. The heat-type hot water supply device according to item i of the patent application, which is formed by including at least one of the aforementioned water supply pipe, the aforementioned heat exchanger, and the aforementioned hot water supply circuit. The water circulation path maintains the temperature of the circulating water in the water circulation path. 9. The heat pump type hot water supply device according to item 8 of the patent scope, which drives the heat pump through the mechanism described above and maintains the temperature of the circulating water in the water circulation path through the water flow path. The kiss type 1 hot water supply device of claim No. 8 in which the aforementioned water circulation system includes a heat storage section. U · If the scope of patent application is No. 2 and No. 3: ¾ The heat pump type K supply device of any one of 10 items, wherein the heat storage unit is equivalent to at least the heat pump circulation mechanism and the heat exchanger. One of the insufficient heat generated due to the delayed thermal reaction is the stored heat. 12. If the patent application covers the second, third or tenth water supply device, the hot water supply temperature of the aforementioned heat storage section supply circuit is high. The heat temperature of any of the heat pump type animals is higher than that of the aforementioned hot water. For example, if the water supply device of the scope of the patent application, the heat pump type of any of 2, 3 or 10, the heat storage unit has a useful function. A storage tank for storing water in at least one of the water circulation paths constituted by the aforementioned 45 574491 water supply pipe, the aforementioned heat exchanger, and the aforementioned hot water supply circuit. ^ A heat pump-type hot water supply device including a heat circulation mechanism including a compressor, a radiator, a decompression unit, a heat sink, and a compressor, a heat sink, a decompression unit, and a heat sink Constitute a closed-circuit refrigerant flow path; The heat parent converter has a water flow path for heat exchange with the refrigerant flow path; a water supply pipe is used to supply tap water to the water flow path; a hot water supply circuit is connected to pass water from the water flow path to the heat The end of the water supply; the load setting section for setting the heating amount of the heat exchanger: and the heating control section for controlling the heating amount of the heat exchanger according to the setting value of the load setting section. 15. If the hot-pump-type hot water supply device with a scope of 14 patent applications, it also has a flow detection section for detecting the flow of the hot water supply circuit, and the load setting section uses the detection value of the flow detection section. Determine the heating amount as a reference. 16 · If the patent application scope 14 items of hot chestnut-type hot water supply device, there is a water temperature detection unit for detecting the water supply temperature of the aforementioned water supply pipe, and the setting unit described in 1J is based on the aforementioned water temperature detection The heating amount was obtained based on the detected value of the portion t. 17 · If the scope of the patent application is 14 items, the return-type hot water supply device is 46 574491, which is composed of acres ^ Γί 铭 匪 甲 | ^ 3 Exclusive "轺 ,,,,,,", i · ~! Igg钱 jigi | Continue hall Ai noodle ill There is a temperature setting section for setting the target temperature of the hot water supply, and the load setting section calculates the heating amount based on the setting value of the temperature setting section. 5 10 15 1 The heat pump type hot water supply device according to item 17 of the patent application scope further includes a hot water temperature detection section for detecting the temperature of the hot water flowing out of the hot water supply circuit, and the load setting section is based on the aforementioned The difference between the outflow hot water temperature and the target temperature is used as a reference to calculate the first heating amount. 19. For example, the heat pump hot water supply device of the scope of application for patent No. 18 further includes a water temperature detection section for detecting the water supply temperature of the water supply pipe and a flow detection section for detecting the flow of the hot water supply circuit. The second heating amount is calculated based on the values of the water temperature detection section, the temperature setting section, and the flow detection section, and the first heating amount and the second heating amount are added. 20. The heat pump-type hot water supply device according to item 14 of the scope of patent application, wherein the load setting section has a heat increase for setting a heat quantity that satisfies a thermal reaction delay of at least one of the heat pump circulation mechanism and the heat exchanger. High setting part, and add the set value of the aforementioned rising setting part 20 when setting the heating amount. 21. For example, the heat pump type hot water supply device of the scope of application for patent No. 14, wherein the heating control part can control the rotation speed of the compressor. . 22. The heat pump hot water supply device according to item 14 of the application, wherein the heating control unit is used to control the resistance of the refrigerant flow path. 23. For example, the heat pump type hot water supply device of item 22 of the scope of patent application, 47 574491: The scope of the patent application is a water temperature detection unit for detecting the water supply temperature of the water supply pipe, and the resistance control system of the refrigerant flow path is described. This is performed in accordance with the detection temperature of the water temperature detection section. 5 24. The heat pump hot water supply device according to item 14 of the scope of patent application, wherein the heating control unit can control the heat absorption of the heat sink. 25. The heat pump hot water supply device according to item 14 of the patent application scope, wherein the heating control unit may change at least one of a flow velocity and a flow rate in the water flow path in the heat exchanger. 10 26 · The heat pump hot water supply device according to item 14 of the scope of patent application, further includes an air temperature detecting section for detecting the air temperature, and the heating control section controls the heat exchanger according to the detection value of the air temperature detecting section. Amount of heating. 27 · —A heat pump type hot water supply device, including: 15 Γα heat pump circulation mechanism, including: most compressors, radiators, decompression units, heat sinks, and compressors, radiators, and decompression units And the aforementioned heat sink is configured as a closed refrigerant flow path; the heat exchanger 'has a water flow path for heat exchange with the aforementioned refrigerant flow path; a water supply pipe' is used to supply tap water to the aforementioned water flow path; and a hot water supply circuit, It is connected so that water can flow from the water flow path to the hot water supply end. 28. A heat pump type hot water supply device, including: most heat pump circulation mechanisms, including a compressor, a radiator, a decompression unit, a heat absorber, and the compressor, the radiator, the aforementioned minus 48 574491, ,,,,,,,,,,, ,,,,,,,,, ::,, ,,,,,,,,,,,,,, s'% $ ,,,,,,,,,,,, ,,,,,: ί i * > ,,,,,,,,,,,,,,,,, χ,, "" ,,,, ',,,, S -¾ N sis S, ,, s ,,,,,,,,,,,,,,,,,, :: ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, · ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,-,,,,,,,,, and i ,,,,,,,, 'Ϊ', '',,,, price, ζ, ,, '',,,, ',,,, and the heat sink constitute the closed-circuit refrigerant flow path; heat exchange A water flow path for heat exchange with the refrigerant flow path; 5 a water supply pipe, In the water supplied to the water flow path; and a hot water supply circuit, connected to the system's water supply tip may pass from the water passage to the hot water. 29. For example, the heat pump hot water supply device according to item 28 of the scope of patent application, the heat exchanger and the majority of the heat pump circulation mechanisms are divided into a plurality of units and arranged. 10 30. For the heat pump type hot water supply device under the scope of patent application No. 28, the number of operating tables of most of the aforementioned heat pump circulation mechanisms is changed according to the hot water supply load. 15 31. The heat pump type hot water supply device according to any one of the claims 1, 14, 27, or 28, wherein the heat pump circulation mechanism is a supercritical heat pump circulation mechanism with a refrigerant pressure above a critical pressure, and by The refrigerant that has been raised above the critical pressure heats the flowing water in the water flow path in the heat exchanger. 32. If the heat pump type hot water supply device according to any one of the scope of application for patents 1, 14, 27 or 28 is in the heat exchanger, the flow direction of the refrigerant flow path and the flow direction of the water flow path relatively. 49 20